at Pp.32 is to be read as vivaṭṭati.

1. to move back, to go back, to revolve, to begin again (of a new world-cycle), contrasted with saṃvaṭṭati to move in an ascending line (cp vivaṭṭa) DN.i.17; DN.iii.84, DN.iii …

…and vivaṭṭati DN.ii.109 sq. The Buddha has mastered it by his enlightenment: loko Tathāgatena…

…process of evolution (opp. vivaṭṭati in devolution) DN.i.17 DN.iii.84, DN.iii.109; AN.ii.142; DN-a.i.110. 2. to fall to pieces, to come to…

…(neva ubbaṭṭati na vivaṭṭati; variant reading uppaṭṭati); Dhp-a.iii.155.

Caus. of ud + vṛt, of which doublet is…

Vivatta-cchada

adjective having the cover removed, with the veil lifted; one who draws away the veil (cp. vivaraṇa or reveals (the Universe etc.); or one who is freed of all (mental & spiritual) cov …

˚ā (f.) turning away, moving on, moving back Pts.i.66; Pts.ii.98; Vism.278 (f. explained as “magga”).

fr. vivaṭṭati

in phrase ā. vivaṭṭati to turn forward & backward Vism.504.

= āvattati